Highly Stable Redox-Active Molecular Layers by Covalent Grafting to Conductive Diamond

Highly Stable Redox-Active Molecular Layers by Covalent Grafting to Conductive Diamond

We demonstrate a modular “click”-based functionalization scheme that allows inexpensive conductive diamond samples to serve as an ultrastable platform for surface-tethered electrochemically active molecules stable out to ∼1.3 V vs Ag/AgCl. We have cycled surface-tethered Ru(tpy)2 to this potential m...

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Veröffentlicht in:Journal of the American Chemical Society 2011-04, Vol.133 (15), p.5692-5694
Hauptverfasser: Ruther, Rose E, Rigsby, Matthew L, Gerken, James B, Hogendoorn, Stephanie R, Landis, Elizabeth C, Stahl, Shannon S, Hamers, Robert J
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Sprache:eng
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Zusammenfassung:We demonstrate a modular “click”-based functionalization scheme that allows inexpensive conductive diamond samples to serve as an ultrastable platform for surface-tethered electrochemically active molecules stable out to ∼1.3 V vs Ag/AgCl. We have cycled surface-tethered Ru(tpy)2 to this potential more than 1 million times with little or no degradation in propylene carbonate and only slightly reduced stability in water and acetonitrile.
ISSN:0002-7863
1520-5126
DOI:10.1021/ja200210t